Truly. I have the feeling a lot of people view the race as a sprint and run out of wherewithall when they realise it is more like an ultra marathon.
It can take quite a while before your real audience has found you, viral elements help but are no guarantee of a significantly easier process, even if they can cut the time it takes to get to the level of 'ramen profitability'.
And that's all assuming you make no critical mistakes, which can set you back weeks or months.
Endurance is far more important than talent in this phase and I think that is something that ought to be made much more clear. If the expectations are more realistic I think people would find it in themselves to go the distance.
Unrealistic expectations are killing.